tests/rterror_attr_def.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #     http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 import kernel
  16
  17 class I
  18         var v: Int
  19         redef fun output do v.output
  20 end
  21
  22 class A
  23         var o: Object = 'c'
  24         var a: I is noinit
  25         var b: nullable I = null
  26         #alt2#var c: I = self.a
  27         #alt3#var d: I = self.b.as(not null)
  28         #alt4#var e: I = self.o.as(I)
  29         #alt5#var f: I = self.initattr
  30         #alt6#var g: I = self.getnull.a
  31
  32         fun initattr: I do abort
  33         fun getnull: nullable A do return null
  34
  35         init
  36         do
  37                 self.a = new I(1) #alt7#
  38                 self.b = new I(2) #alt8#
  39         end
  40 end
  41
  42 class B
  43         super A
  44
  45         fun foo
  46         do
  47                 self.o.output
  48                 '\n'.output
  49                 self.a.output
  50                 self.b.output
  51                 #alt2#self.c.output
  52                 #alt3#self.d.output
  53                 #alt4#self.e.output
  54                 #alt5#self.f.output
  55                 #alt6#self.g.output
  56         end
  57 end
  58
  59 var b = new B
  60 b.foo
  61 '\n'.output